Crown 1160MA Operation Manual
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Crown 1160MA Operation Manual

Commercial audio series
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Operation Manual
Commercial Audio Series
Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your
local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000.
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible
situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have
occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice: Crown, Crown Audio and Amcron are registered trademarks of Crown International. Other trademarks are the
property of their respective owners.
Some models may be exported under the name Amcron.
©2007 by Crown Audio
®
Inc., 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8200
180MA
1160MA
280MA
®
137783-7D
12/07

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  • Page 1 The information provided in this manual was deemed accurate as of the publication date. However, updates to this information may have occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com. Trademark Notice: Crown, Crown Audio and Amcron are registered trademarks of Crown International. Other trademarks are the property of their respective owners.

  • Page 2: Important Safety Instructions

    Important Safety Instructions Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instruc- tions.

  • Page 3: Declaration Of Conformity

    CF14 9UG United Kingdom Equipment Type: Commercial Audio Mixer-Amplifiers Family Name: Mixer-Amplifiers Model Names: 180MA, 280MA, 1160MA EMC Standards: EN 55103-1:1997 Electromagnetic Compatibility - Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions...

  • Page 4: Table Of Contents

    Table of Contents Important Safety Instructions ...2 Declaration of Conformity ...3 1 Welcome ...5 1.1 Features ...5 1.2 Front Panel Controls and Indicators ... 6 1.3 Back Panel Controls and Connectors...7 2 Setup ...8 2.1 Installation...8 2.2 How to Attach Rack Ears ...8 2.3 Choose Input Wire and Connectors ...9 2.4 Choose Output Wire and Connectors ...9 2.5 Wire Your System ...10...

  • Page 5: Welcome

    1.1 Features • 4 to 8 inputs, 1 to 2 amplifier output chan- ® The Crown 180MA, 280MA and 1160MA are nels high-value mixer-amplifiers for commercial and industrial audio. They provide 4-ohm and • Ideal for commercial and industrial use constant-voltage outputs (70V and 100V).

  • Page 6: Front Panel Controls And Indicators

    Green LED, one for each input channel, illuminates when input signal exceeds –24 dBu (line) or –70 dBu (mic). B. Input Volume Controls Microphone/line, four in 180MA and 1160MA, eight in 280MA. Detented potentiometers with knobs. C. Output Volume Controls One per output channel.

  • Page 7: Back Panel Controls And Connectors

    Commercial Audio Series Mixer-Amplifiers 1 Welcome 1.3 Back Panel Controls and Connectors M. Amp Config Switch J. Reset Switch A DIP switch with two functions: Resets the circuit breaker that protects the power supply. 1. Assigns one of the inputs as the priority input for each 220/230/240V units have a fuse instead.

  • Page 8: Setup

    2 Setup 2.1 Installation 2.2 How to Attach Rack Ears CAUTION: Before you begin, make sure your 1. Locate the two rack ears and two rack-ear screws mixer-amplifier is disconnected from the supplied. power source, with the power switch in the 2.

  • Page 9: Choose Input Wire And Connectors

    Figure 2.3 Balanced Input Connector Wiring MIXER-AMP INPUT Figure 2.4 Unbalanced Input Connector Wiring MIXER-AMP INPUT Figure 2.5 Two Amplifier Output Connectors on 280MA Back Panel (One Connector in 180MA and 1160MA) BALANCED LINE SHIELD TO DESTINATION OUTPUT UNBALANCED LINE TO DESTINATION UNGROUNDED...

  • Page 10: Wire Your System

    2 Setup 2.5 Wire Your System Typical input and output wiring is shown in Figure 2.7 INPUTS: Connect microphones or balanced line-level sources to mixer-amplifier balanced inputs. Set Mic/Line switches accordingly. Connect unbalanced line-level sig- nals to RCA input connectors. OUTPUTS: Maintain proper polarity (+/–) on output con- nectors.

  • Page 11: Input Routing

    Commercial Audio Series Mixer-Amplifiers 2.6 Input Routing In the 280MA, any input can be assigned to Amp 1, Amp 2 or both. The two DIP switches labeled INPUT ROUTING are used (Figure 2.8). Follow the settings printed on the back panel next to the INPUT ROUTING switch. For example, to send input Channel 3 to Amp 1 and Amp 2, turn on DIP switches 13 and 14.

  • Page 12: Remote Volume Control

    2 Setup 2.10 Remote Volume Control You can control the volume of each amplifier channel remotely. To do so, locate the OUTPUT VCA connector on the back panel. Insert a 4-pin Phoe- nix-type cable connector into the OUTPUT VCA connector. Wire a Crown 1-VCAP or 4-VCAP level control to the Phoenix-type cable connector ter- minals as shown in Figure 2.11.

  • Page 13: Block Diagram

    Commercial Audio Series Mixer-Amplifiers 2 Setup 2.14 Block Diagram Pre-Announce Gain Phantom Powe r Pre-Announce Pre-Announce Input Gain Chim e Line Mic/Line Mi c [Bal] SP I CH 1 Tone Control Bass Trebl e Gain 1 Input Gain Line Mic/Line Mi c [Bal] SP I...

  • Page 14: Troubleshooting

    3 Troubleshooting CONDITION: No power to the mixer-amplifier. POSSIBLE REASON: • The mixer-amplifier’s Power switch is off. • The mixer-amplifier is not plugged into the • The mixer-amplifier’s high-voltage power sup- • If the unit is operated from a 24V DC supply, CONDITION: Distorted sound.

  • Page 15: Specifications

    EIA Standard 19" W (EIA RS-310-B) x 3.5" (8.9 cm) H x14" (35.6cm) D x 3.5" (8.9 cm) H x14" (35.6cm) D 21.0 lb. (9.5 kg), 26.0 lb. (11.8 kg) 25.3 lb. (11.5 kg), 30.3 lb. (13.7 kg) 1160MA 160W 1160MA 3 mV 3 mV...

  • Page 16: Service

    5.2.5 Estimate Approval Approval of estimate must be given within 30 days after being notified by Crown Audio Inc. Units still in the pos- session of Crown after 30 days of the estimate will become the property of Crown Audio Inc.

  • Page 17: Warranty

    Commercial Audio Series Mixer-Amplifiers 6 Warranty SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB- SEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
  • Page 18 6 Warranty SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB- SEQUENT OWNER of each NEW Crown1 product, for a period of three (3) years from the date of pur- chase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship, and we...

  • Page 19: Warranty Registration

    ________________________________ Product purchased from: *(Business/Individual) ___________________________ Country: ________________________ Comments: ____________________________________________________________________________________ _____________________________________________________________________________________________ _____________________________________________________________________________________________ Operation Manual PRODUCT REGISTRATION Crown Audio, Inc. Fax: 574-294-8329 1718 W Mishawaka Rd Elkhart IN 46517 OWNER'S INFORMATION - PLEASE PRINT PRODUCT INFORMATION * SERIAL # e.g. 8000000000...
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  • Page 21: Crown Factory Service Information Form

    Commercial Audio Series Mixer-Amplifiers Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 SRA #: __________________(If sending product to Crown factory service.) Individual or Business Name: ___________________________________________________________________________________________________________________________________________________________________________ Phone #: __________________________________________________ _________________________________________________________ Street Address (please, no P.O.
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  • Page 23 Commercial Audio Series Mixer-Amplifiers THIS PAGE INTENTIONALLY LEFT BLANK Operation Manual page 23...

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180ma 280ma180ma280ma

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